Russia will give the Security Council evidence implicating Syrian rebels in a chemical attack on 21 August, Foreign Minister Sergei Lavrov has said.  http://www.bbc.co.uk/news/world-middle-east-24140475    Syrian officials supplied the evidence.  A UN report released on Monday concluded the nerve agent sarin was used in the attack in Damascus, which the US blames on the Syrian regime.

Russia has called the report one-sided and biased. The UN has hit back, saying its findings are “indisputable”.

Russia, which has repeatedly cast doubt on the whether the regime carried out the attacks, has objected to any resolution authorising force.

The basis of information upon which it is built is not sufficient, and in any case we would need to learn and know more on what happened beyond and above that incident of 21 August,” he said.

“We are disappointed, to put it mildly, about the approach taken by the UN secretariat and the UN inspectors, who prepared the report selectively and incompletely.”

The UN inspectors were originally mandated to go to Syria to investigate three alleged chemical weapons attacks, at Khan al-Assal, Sheikh Maqsoud and Saraqeb.

They are due to return to Syria “within weeks” to complete their inquiry into the other attacks, and a report is due in October.